Ryobi PCN 4040 Owner's Operation Manual page 23

TROUBLESHOOTING
PROBLEM
Engine starts and runs,
but chain is not rotating.
Bar and chain running hot
and smoking.
NOTE: The carburettor adjustment needle(s) are equipped with plastic cap(s) which prevent anticlockwise rotation
from the original factory adjustment. If your product exhibits specific performance problem(s) where the
Troubleshooting Section recommends an anticlockwise needle adjustment and you have made no adjustments since
the original purchase, take the product to a factory authorised service dealer for repair. In most cases, the needed
adjustment is a simple task for the factory trained service representative.
English
POSSIBLE CAUSE
1. Chain oil tank empty.
2. Check chain tension for
overtight condition.
3. Check for oiler function.
1. Chain brake engaged.
2. Chain tension too tight.
3. Check guide bar and
chain assembly
4. Check guide bar and
chain for damage.
16
SOLUTION
1. Oil tank should be filled every time
that fuel tank is filled.
2. Tension chain per instructions in
"Maintenance – Adjusting the Chain
Tension" earlier in this manual.
3. Run at half throttle 30 to 45 seconds.
Stop saw and check for oil dripping from
SAFE-T-TIP® and guide bar. If oil is
present the chain may be dull or bar may
be damaged. If no oil is on the SAFE-T-
TIP®, contact a Ryobi service dealer.
1. Release chain brake, refer to
"Operation – Operating Chain Brake"
earlier in this manual.
2. Tension chain per instructions in
"Maintenance – Adjusting the Chain
Tension" earlier in this manual.
3. Refer to "Maintenance – Assembling the Bar
and Chain" earlier in this manual.
4. Inspect guide bar and chain for damage.